Power-transmission mechanism.



PATENTED JULY 24, 1906. I M. HENDRICKSON.

POWER TRANSMISSION MECHANISM. APPLICATION FILED 0013.24, 1905.

4 SHEETSSHEET 1.

, H mmlln I 0 5/; \\\\\\\\\\\\\HIlIlI////// /Z No- 826,851. PATENTE'D JULY 24, 1906.

M. HBNDRICKSON. POWER TRANSMISSION MECHANISM.

llll

. PATENTED JULY 24, 1906. M. HENDRIGKSON.

POWER TRANSMISSION MECHANISM. APPLICATION FILED 00T.24,1905.

4 SHEETS-SHEET 3 I lI-I r 1 0 0 0 PATENTED JULY 24, 1906.

M S I N A H mm OM S KN 00 II D I m m M T R E W '0' P 4 SHBETS-SHEET 4.

' APPLICATION FILED 001 1905- UNITED STATES ZgIlENT OFFICE.

MAGNUS HENDRICKSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO JACOB LAUTH, OF CHICAGO, ILLINOIS Specification of Letters Patent.

Patented July 24, 1906.

Application filed October 24:, 1905. Serial No. 284,194.

To all whom it may concern;

Be it known that I, MAGNUS HENDRICK- SON, a citizen of the United States,'residing' at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Power-Transmission Mechanism, of which the following is a specification.

My invention relates particularly to powertransmission mechanism for motor-vehicles; and my primary object is to provide for effecting several complex movements in regulating speed and direction, mechanism at once simple, reliable, and durable.

The invention is illustratedin its preferred embodiment in the accompanying drawings,- in which- Figure 1 is a broken plan View of a frame which may be mounted upon or constitute a portion of the running-gear frame of a motor-vehicle and upon which is mounted my improved power-transmission mechanism; Fig. 2, a broken plan view illustrating one manner of transmitting power from the transmission mechanism proper to the rear axle of the vehicle; Fig. 3, a plan view of the gearcasing with the top plate removed; Fig. 4, a view of one of the shafts of the gear mechanism; Fig. 5, a longitudinal section taken as indicated at line 5 of Fig. 3; Fig. 6, a transverse section taken as indicated at line 6 of Fig. 3; Fig. 7, a longitudinal section taken as indicated at line .7 of Fig. 6; Fig. 8, a broken transverse section taken as indicated at line 8 of Fig. 3, the section extending to the controlling-lever and its guard shown in Fig. 1, however; Fig. 9, a broken side view of the controlling-lever and its guard; Fig. 10, a section taken as indicated at line 10 of Fig. 8; Fig. 11, a plan view of a laterally-shiftable rock-shaft lock employed in connection with the controlling-lever,- Fig. 12, a bottom plan view of the guard shown in Fig. 10 with the rock-shaft lock shown in Fig. 11 attached; Fig. 13, a perspective view of theguardshown in Fig. 10; Fig. 14, a' perspective view of the lock shown in Fig. 11; and Fig. 15, a broken perspective view of a pair of rock-shafts and their actuating-arms, one of said shafts being tubular and receiving the other.

In the preferred construction illustrated in the accompanying drawings, A A represent frame members, which may either constitute the side members of the running-gear frame or be supported thereon in any suitable manner; A A cross members supported on the members A- A; A, a frame member parallel with and adjacent to the member A and which may be supported from the member A or in any other suitable manner; B, a gearcasing having a removable top plate B and bearings at the ends of the casing, in which are journaled longitudinal shafts B B B, a power-shaft, such as the shaft of an engine, joined by a clutch B operated by a foot-lever B to a sleeve B journaled on the front end of the shaft B as shown in detail in Fig. 5; B a pinion fixed on the rear end of the sleeve or tubular shaft B7 within the earcasing and serving to actuate the sha t.B

through the medium of the gear B; B B, a pair of gears, the former fixed on the shaft B and the latter journaled on. the shaft B B B pinions fixed on the shaft B and serving to transmit power to a sliding gear B spline'd on the shaft B the pinion B serving to transmit power directly to the pinion B and serving to transmit power in a reverse direction through the medium of an idlerpinion B B a'shiftable clutch member splined on the shaft B between the pinion B and the gear B, said pinion and gear being provided with coacting clutch members, as clearly shown in Fig. 3; C C, a pair of rockshafts extending through one side of the gearcasing, the shaft 0 being tubular and the shaft C extending through the shaft C; G a connecting-rod joining a crank with which the shaft 0 is equipped within the gear-casing to a slide C mounted on a guide C and equipped with a yoke serving to shift the clutch B G a connecting-rod joining a crank with which the shaft C is provided within the. casing to a member C, firmly connected with aslide C and e uipped with a yoke serving to shift the gear G a bifurcated actuating-arm secured on the outer end of the tubular rock-shaft C; C", a bifurcated actuating-arm secured on the outer end of the rock-shaft C; D, a controlling-lever having universal connection D with a hanger D carried by the frame member A;

D a guard for thelever D, equipped with lugs 11, joined by bolts (1 to the frame member A, the same bolts serving to secure the transversely-shiftable rock-shaft lock conshaft B and the gears secured thereon.

nected with the guard D and with the lever D.

The frame may be of any suitable constructionand need not be described more in detail.

The gear-casing is intended to be oil and dust proof, and access to the interior is rovided by means of the removable top p ate B. The feature of rock-shafts projecting into the ear-casing and provided within the casing with means for shifting the powertransmission members 13 and B is calculated to lend simplicity to the construction and contribute to the dust-proof character of the casin It will be seen that when the clutch B 1s operated to connect the short tubular shaft B 'to the shaft B motion will be imparted to the pinion B and also to lt ge e gear B will rotate continuously with the gear B, but at a slower rate of speed than the pinion B When the clutch B is .thrown into engagement with the clutch of the gear B, power will be transmitted through the sleeve B to the shaft B and thence back through the gears B and B to the shaft 13, so that the shaft B Will rotate in the same direction as the sleeve 13, but at a slower speed; A slow speed either forward or backward is provided through the medium of the shiftable gear B, it being understood that with a slow speed a sliding gear may be safely employed, whereas with a high seed a sliding gear cannot be safely emp oyed. As has beenstated, the clutch B is actuated through the medium of the tubular rock-shaft C, and the sliding gear B is actuated through the medium of the inner rock- 'shaft C.

The controlling-lever D, as stated, has universal connection with the hanger D I This is preferably provided'by e uipping the hanger with a stud (1 upon w ich is journaled a sleeve (Z joined by a pivot d to the lower end of the lever., As shown clearly in Fig. 8, the outer end of the rock-shaft C is journaled in the ban er D and the outer end of the rock-shaft projects beyond the outer end of the shaft 0 and passes through a perforate enlargement d in the lever D, as

est shown in Fig. 9. The lever is mounted to swing in a lon itudinal plane, as well as a transverse plane, etween the actuating-arms C and C of the rock-shafts C and C. It is -p)quipped with'lateral studs d d, which may D isthatshown in Fig. 9, which is the central position longitudinallymnd transversely. In

this position the leveris locked to the guard D b means of a spring-actuated pawl d whic engages a transverse tooth d on the upper side of the guard. The pawl is released through the medium of a rod (1 and a short lever d, mounted at the u per end of the lever D. The rock-shaft ock. D is equi ped on its upper side with studs provided with rollers which move in a transverse guide-slot d, with which the guard D is rovided on its lower side. The member D has a longitudinal slot d, in which'the lever D works, and is provided with depending locking-lugs (Z d. The guard is provided with longitudinal slots or channels (1" d, joined at their centers by a transverse slot (1. When the lever-D is in the center of its lon itudinal traverse, therefore, it may be shifte from one longitudinal slot to the other.- When the lever occupies the longitudinal slot (1 it is in po'sitionto turn the rock-shaft C in either direction at will, thereby enabling the slowest speed forward or the reverse s eed to be employed. 1 When the controllingever occupies the longitudinal slot (1", it may be thrown either rearwardly to connect the intermediate speed forward or forwardly to connect the highest speed forward at will. When the hand-lever D is moved in a transverse plane to the right to occupy the position shown in Fig. 8, the sliding lock D is at the same time moved to the right, bringing. the lug (Z into position. to

lock the rock-shaft (l, and when the lever D is shifted to the left to bring it into the lane of the longitudinal slot d the slide 4 is shifted to the left and .brou ht into position to release the rock-shaft shaft C.

Power may be transmitted from the shaft B to the rear axle E by means of the shaftand-gear arrangement E, (shown in Fig. 2,) or any other suitable means of transmission may be provided.

The operation has already been sufficiently described, from which it will appear that the three speeds forward and a reverse, which ordinarily is deemed suflicient for motor-veand rock the 7 hicle purposes,.are effected by means of a single controlling-lever capable of swinging in both a longitudinal and a transverse plane.

What I regard as new, and desire to secure by Letters Patent, is

1. In mechanism of the character described, the combination with shiftable transmission members, of a pair of rock-shafts serving to actuate the same and equipped with actuating-arms separated by a suitable space, a controllingever located between the planes of said arms and mounted to swing in both a longitudinal and transverse plane, means for eflecting connection between said controlling lever and either one of the rock-shaft-actuating arms, and a transversely-shiftable slide equipped with lockin means for the actuating-arms of the roc -shafts, said locking means being so disposed that when the controlling-lever is in position to actuate one rock-shaft the otherrock-shaft will be locked, for the purpose setforth.

2. In mechanism of the character described, the combination with shiftable transmission elements, of a pair-0f rock-shafts serving to shift the same equipped with suitably-s aced actuating-arms, a universally-connecte controlling-lever located between the planes of said arms, a guard for said lever provided with a plurality of longitudinal slots and a connecting-slot, and a ocking member slidably connected with said guard and provided with a longitudinal slot receiving said lever, for the purpose set forth.

3. In mechanism of the character described, the combination of a tubularv rock-shaft equipped with means for shifting a transmission element, a rock-shaft exten ing through said first-named shaft and equip ed with means for shifting a transmission e ement, a pair of actuatin arms connected with the free ends of sai rock-shafts, a controllinglever located between the planes of said arms and recessed to receive the inner rockshait, connecting means between the controllinglever and said arms whereby either arm may be actuated in either direction, a guard for said lever provided with a plurality of longitudinal channels and a connecting crosschannel, the latter channel being centrally located, and a locking member provided with means for engaging either one of said rockshaft-actuating arms.

4. In mechanism of the character described, the combination with shiftable transmission elements, of a pair of rock-shafts connected therewith, a hanger in which said rock-shafts are journaled, a lever having universal connection with said hanger beneath the rockshafts, a guard provided with a plurality of longitudinal slots for the lever, and rockshaft-actuating means between the lever and rock-shafts, for the purpose set forth.

5. In mechanism of the character described, the combination of a tubular rock-shaft, a rock-shaft extending 'therethrough, actuating-arms connected with said rock-shafts and spaced to receive a controlling-lever between t em, a guard provided with a plurality of longitudinal channels for the controlling-lever, and a central connecting-channel, a con trolling-lever located in a plane between said actuatmg-arms and mounted to swing both longitudinally and transversely of the guard, and a transversely-shiftable longitudinallyslotted locking member depending from said guard and receiving said lever and equipped -.With .means for engaging the actuating-arm of either rock-shaft at will.

6. In mechanism of the character described,

the combination of a gear-casing, shafts journaled therein and equipped with transmission elements, a tubular rock-shaft extending into said casing and equipped within the casing with means for shifting a transmission element, a rock-shaft extending through said tubular rock-shaft andlequipped within the casing with means for shifting a transmission element, and means for actuating either one pf said rock-shafts at will, for the purpose set orth.

MAGNUS HENDRICKSON.

In presence of- L. HEISLAR,

J. H. LAUDES. 

